Adding a log to explain which executor is used in breeze (apache#47764)

Author: amoghrajesh

dev/breeze/src/airflow_breeze/commands/developer_commands.py

@@ -598,6 +598,8 @@ def start_airflow(
             # Otherwise default to LocalExecutor
             executor = START_AIRFLOW_DEFAULT_ALLOWED_EXECUTOR
 
+    get_console().print(f"[info]Airflow will be using: {executor} to execute the tasks.")
+
     platform = get_normalized_platform(platform)
     shell_params = ShellParams(
         airflow_constraints_location=airflow_constraints_location,